Packaged articles
CA 1073570 A · Owner: Goodyear Tire And Rubber Company (The) · Inventors: Evans, Theodore A.; Watts, William A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
INVENTORS: Theodore A Evans and William A Watts INVENTION: PACKAGED ARTICLES, Abstract of the Disclosure A package comprised of an article selected from unvulcanized rubber, compounding ingredients for unvulcanized rubber and compounding ingredients for thermoplastic polymers wrapped in a protective film composite compatible with said unvulcanized rubber or thermoplastic polymer respectively. Said film composite is comprised of an admixture of (1) an unvulcanized elastomeric block copolymer and (2) a thermoplastic aromatic group-containing resin characterized by being soluble in styrene. The invention is further directed to a method of preparing the package and to compounding high …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted March 11, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 11, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.